StartseiteMCPWorkbenchSkills
StartseiteWorkbenchBenachrichtigungenMein Bereich
llms.txt · MCP-AnleitungDatenschutz · Nutzungsbedingungen · Supportv1.8.0
  1. Startseite
  2. /Reaktion

Cesium carbonate → Tert-butyl 4-(4-(dibenzylamino)-3-(trifluoromethoxy)phenyl)piperazine-1-carboxylate

HRID 1503863
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1503863
[CH2:1]([N:8]([CH2:21][C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1)[C:9]1[CH:14]=[CH:13][C:12](Br)=[CH:11][C:10]=1[O:16][C:17]([F:20])([F:19])[F:18])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[N:28]1([C:34]([O:36][C:37]([CH3:40])([CH3:39])[CH3:38])=[O:35])[CH2:33][CH2:32][NH:31][CH2:30][CH2:29]1.C1(P(C2C=CC=CC=2)C2C=CC3C(=CC=CC=3)C=2C2C3C(=CC=CC=3)C=CC=2P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C(=O)([O-])[O-].[Cs+].[Cs+]>C1(C)C=CC=CC=1.C([O-])(=O)C.C([O-])(=O)C.[Pd+2]>[CH2:1]([N:8]([CH2:21][C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1)[C:9]1[CH:14]=[CH:13][C:12]([N:31]2[CH2:30][CH2:29][N:28]([C:34]([O:36][C:37]([CH3:40])([CH3:39])[CH3:38])=[O:35])[CH2:33][CH2:32]2)=[CH:11][C:10]=1[O:16][C:17]([F:20])([F:19])[F:18])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 4

HCID 10796Cesium carbonateHCID 143452tert-Butyl piperazine-1-carboxylateHCID 634876Binap, (A+-)-HCID 70558473N,N-dibenzyl-4-bromo-2-(trifluoromethoxy)aniline

Produkt 1

HCID 86725404Tert-butyl 4-(4-(dibenzylamino)-3-(trifluoromethoxy)phenyl)piperazine-1-carboxylate

Reagenzien, Katalysatoren, Lösungsmittel

2
HCID 167845palladium(II) acetateKatalysatorHCID 1140TolueneLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

A mixture of the product of EXAMPLE 45A (7.92 g, 18.21 mmol), tert-butyl piperazine-1-carboxylate (3.73 g, 20 mmol), palladium diacetate (205 mg, 0.91 mmol), (±)-2,2′-bis(diphenylphosphino)-1,1′-binaphthalene (850 mg, 1.36 mmol) and cesium carbonate (11.88 g, 36 mmol) in toluene (200 mL) was heated under nitrogen at 100° C. for 20 hours. After cooling to ambient temperature, the mixture was concentrated and the residue was diluted with dichloromethane (300 mL), washed with water and brine, dried over sodium sulfate, filtered and concentrated. The residue was purified by flash chromatography on silica gel (200-300 mesh) eluting with 10/1 petroleum ether/ethyl acetate to give the title compound. MS: 542 (M+H+).

Aufarbeitung

  1. temperatureAfter cooling to ambient temperature
  2. concentrationthe mixture was concentrated
  3. additionthe residue was diluted with dichloromethane (300 mL)
  4. washwashed with water and brine
  5. dry with materialdried over sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customThe residue was purified by flash chromatography on silica gel (200-300 mesh)
  9. washeluting with 10/1 petroleum ether/ethyl acetate

Quellen und Nachweise

ORD-Eintrag
ord-a254ede152ae46bc96bfc7a45ee399d5
Quelldatensatz
uspto-grants-2015_12
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09212192B2

Notizen zur Reaktion

Wird geladen…

Auf dieser SeiteKomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion